Nut-locking appliance.



G; W. WATTS.

NUT LOCKING APPLIANCE.

APPLICATION FILED DEC-15' I914.

1,142,647. Patented June 8, 1915.

wilhessas. 1111:0225):

GEORGE WILFER WATTS, OF HOT SYRING S, ARKANSAS.

NUT-LOCKING APPLIANCE.

Specification of Letters Patent.

Application filed December 15, 1914. Serial No. 877,368.

To all whom it may concern:

7 Be it known that I, GEORGE'W. WATTS, a

I citizen of the United States, residing at Hot Springs, in the county of Garland and State of Arkansas, have invented a Nut Locking Appliance, of which the following is a specification. Y

My invention is an improvement in the class of nut-locks in which a clamp-screw is threaded through the side of a nut and its point engages the thread of the bolt to which the nut is applied.

The details of construction, arrangement,

and combination of parts involved in my lHVBI1t10I1,-&I'6 heremafter descrlbed, and

illustrated in the accompanying drawings,

in which Figure 1 is a plan view of .the screw-locking device embodying part of my invention, Figs- 2 and 3 are different side views showing the locking device applied to a nut and bolt, a portion of the nut being shown in section in' Fig. 3; and Fig. 4 is a side view showing a modification.

As shown in Fig. 1, the screw-lockmg'device is a plate B having a threaded opening for the reception of a screw-bolt C and a lateral projection A provided with an open 7 E indicates a clamp-screw having a polygonal head and passing through a threaded bore in the side of the nut.

Copies of this patent may be obtained for In applying the nut-locking device, the nut D being screwed on the bolt 0, and the clamp-screw E inserted in the nut so as to engage the thread of the bolt C, as shown in sectional view in Fig. 3, then the screwlocking device B is screwed on the portion of the bolt that projects through the nut,

and the forked end A of the device is next bent inward to embrace and engage the polygonal head of the screw E, whereby the screw is effectively locked so that it cannot become loosened by vibration of the parts in actual use.

In Fig. 4,1'show a-modification in that the-locking device is double, the part B being screwed on the bolt below the nut and provided'withtwo forks A which engage the heads of opposite screws E It is apparent that bythe construction and combination of parts described, the nut is first of all locked by the clamp-screw, and the latter is in turn locked by the forked derrnn STATES PATENT; OFFICE.

Patented une 8, 191.5. g V

vice B, so that loosening of the nut by'jar- 1 ring or vibration is impossible. What I claim is: I

.. 5 The combination, with a screw-bolt and a nut applied thereto, and a clamp-screw passing through a bore in the side of the nut and engaging the bolt-thread, of a screwlocking device consisting of aplate having a threaded opening which adapts it to be screwed on the bolt, and also a lateral projeotion provided with a rectangular slot,

and bent inward to embrace the head of the 1 clamp-screw, as described.

GEORGE WILFER WATTS.

Witnesses: I I

L. E. -SAWYER, JOHN R. MOOTER.

five cents each, by addressing the "Commissioner of Patents,

Washington, D. 0. 

